So one question for you.
My RV trailer - very tall, wide - weighs about 6000 lbs. In your opinion which oil is a wiser, safer choice 0w-30, or 5w-30?
TIA.
DJ.
2024 GX Engine Recall? (5 Viewers)
- Thread starter cartermatthews
- Start date
My RV trailer - very tall, wide - weighs about 6000 lbs. In your opinion which oil is a wiser, safer choice 0w-30, or 5w-30?
TIA.
DJ.
TL;DR: I don't think 0w30 vs. 5w30 matters very much - the specific oil you choose and how you tow I think are more impactful. Whatever oil you pick, I suggest 5k mile oil change intervals or shorter.
I'm no oil expert, but as I understand, there's pretty big variability even in oils of the same grade (Xw30 in your case). I believe API SP (or GF-6A like Lexus recommends - it's the same spec) oils will have significantly lower HTHS than some of the euro oils, despite being marketed with the same grade, because HTHS is a large driver of fuel efficiency.
If you tow infrequently, any 0w30 or 5w30 API SP will probably be fine. In fact, you could probably get away with a 0w20 if you change your oil every 5k miles. Many Xw30 oils shear down to a 20 grade over the course of an oil change anyway.
I'm running Mobil 1 ESP 0w30 - a euro oil with a high starting HTHS of ~3.5 cP - because I believe it exceeds all API SP requirements and should give better, longer-lasting bearing film protection under extremely high heat, high load scenarios like towing up and down mountains in the dead of summer where I'll do most of my towing. Even if it shears, it should shear down to the level you'd normally see in an API SP Xw30, and it's available at my local Walmart. I haven't run it long enough to have an oil analysis run on it, so we'll have to see how that goes.
Some well regarded API SP oils are Mobil 1's normal line of oils (now called Triple Action I think), Mobil 1's Extended Performance line (if it's still available and isn't wrapped into Triple Action now), Pennzoil Platinum, Pennzoil Ultra Platinum, Valvoline's Full Synthetic oil, and Valvoline Restore and Protect.
Honestly, any full synthetic oil available in the US is pretty decent under a 5k mile oil change, even if it says "Walmart SuperTech" on it. Just do your best not to mix oils if you can help it.
I'm no oil expert, but as I understand, there's pretty big variability even in oils of the same grade (Xw30 in your case). I believe API SP (or GF-6A like Lexus recommends - it's the same spec) oils will have significantly lower HTHS than some of the euro oils, despite being marketed with the same grade, because HTHS is a large driver of fuel efficiency.
If you tow infrequently, any 0w30 or 5w30 API SP will probably be fine. In fact, you could probably get away with a 0w20 if you change your oil every 5k miles. Many Xw30 oils shear down to a 20 grade over the course of an oil change anyway.
I'm running Mobil 1 ESP 0w30 - a euro oil with a high starting HTHS of ~3.5 cP - because I believe it exceeds all API SP requirements and should give better, longer-lasting bearing film protection under extremely high heat, high load scenarios like towing up and down mountains in the dead of summer where I'll do most of my towing. Even if it shears, it should shear down to the level you'd normally see in an API SP Xw30, and it's available at my local Walmart. I haven't run it long enough to have an oil analysis run on it, so we'll have to see how that goes.
Some well regarded API SP oils are Mobil 1's normal line of oils (now called Triple Action I think), Mobil 1's Extended Performance line (if it's still available and isn't wrapped into Triple Action now), Pennzoil Platinum, Pennzoil Ultra Platinum, Valvoline's Full Synthetic oil, and Valvoline Restore and Protect.
Honestly, any full synthetic oil available in the US is pretty decent under a 5k mile oil change, even if it says "Walmart SuperTech" on it. Just do your best not to mix oils if you can help it.
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Here's an interesting video about changing the oil grade. Bottom line is, if you trust the source 
, test with oil analysis if a different grade is actually better for you're engine, driving state, climate, etc. But don't trust oil analysis before hitting 10k miles mark.
, test with oil analysis if a different grade is actually better for you're engine, driving state, climate, etc. But don't trust oil analysis before hitting 10k miles mark.Got my official recall notice in the mail today. Says still developing remedy maybe they didn’t want to mess up holiday sales and just holding off announcing anything till after the new year. I can imagine they don’t know what to do
Sorry to hear you're on the list. I was having this recall discussion with my wife last night, and I partially regret it now, because she thinks our engine will blow up any minute.
We are not on the recall as it stands but I guess we will see how this plays out over the next 6-12 months.
Developing the remedy is pretty strange though. We all know what's the remedy, right? They've been replacing bad engines for what? a year now? Do they want to build the supply before announcing the plan?
That's correct. Developing the remedy includes building out logistics for parts (engine) availability, shipping parts around, writing process instructions, figuring out how to stop dealers from hoarding parts, tracking completed recalls, all of that.
Luckily, the acknowledgement of a recall on your vehicle means you will likely get an exception to have a whole long block replacement if your engine fails before the remedy is ready. Otherwise, your dealer would tear your engine down to parts and reassemble with a short block - not something I really want a dealer tech to do. Not to mention the risk of remnant metal shards in your reused parts.
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So I requested a buy back from lexus after the engine recall it took them 45 days to send a letter saying “No” so we are stuck with these or trade in. Lexus did give me a loaner until they fix the engine
But they still don’t have a plan. The loaner was a brand new hybrid I do enjoy getting over 500 miles per fill up.
But they still don’t have a plan. The loaner was a brand new hybrid I do enjoy getting over 500 miles per fill up.
How long was your car in the shop before requesting a buy back
Same day I took it so not long it’s gonna stay there until it’s fixed or trade it.
I went from an always broken in the shop defender to a bad engine probably I. Shop for months
I went from an always broken in the shop defender to a bad engine probably I. Shop for months
Last I checked they haven’t proposed a remedy yet so how did they agree to give you a loaner and take the car?
I did and you need to be under 24k miles mine has 25k but I believe I still have a case next step ncdsusa.org in the mean time explore options I don’t think it’s many GX’s so don’t think they really care the recall letter clearly says it can stall and cause death but it’s safe to drive.
Yes car is at dealership and the loaner was a brand new small nx hybrid
Great car just small
I delt with customer service through lexus. They called dealership and arranged the loaner you get 3 options when they call you back.
1. Drive your truck yes some risk…
2. A loaner from lexus
3. Or 55 bucks a day and get your own loaner.
1. Drive your truck yes some risk…
2. A loaner from lexus
3. Or 55 bucks a day and get your own loaner.
Just don’t want drive it
My daughter had an engine lock up on a Hyundai Santa Fe this year. Hyundai replaced it, but it was a very painful, long, drawn out ordeal working with a representative at a call center in another country. I traded in a GM AT4X for my Lexus GX 550 just before they recalled over 800,000 units for engine failure. I am also aware of an issue with older Toyota twin turbo 6 cylinders failing as well. Thought you all might find this article interesting:
I received my recall letter Dec 15th. It didn’t have a remedy yet. They were just informing me ours was on the hit list. Messages my service guy and he said a remedy letter should be coming next and that is when we can schedule it to come back for the engine swap. Good times.Toyota Recalls Certain Toyota Tundra and Lexus GX and LX Vehicles - Toyota USA Newsroom
PLANO, Texas (Nov. 6, 2025) — Toyota is conducting a safety recall involving certain model year 2022-2024 Toyota Tundra, 2022-2024 Lexus LX, and 2024 Lexus GX vehicles in North America. Approximately 127,000 Toyota- and Lexus-branded vehicles (conventional gas models only) are […]pressroom.toyota.com
I saw someone on a Facebook group mention this, so I looked into it. Sounds like us that got the first couple allotments might be in for an engine recall.
GX550 Forum Photos
GX550 Forum Photos
